Hyoid

Question 1

What bone(s) does the hyoid articulate with?

Answer 1

None directly - sits within muscles.

Question 2

At what vertebral level roughly does the hyoid sit?

Answer 2

C4-5

Question 3

What are they key features of the hyoid?

Answer 3

Body, left and right greater cornu (posterior&lateral), left and right lesser cornu (anterior&medial)

Question 4

What muscles attach to the hyoid bone?

Answer 4

Digastricus, stylohyoid, mylohyoid

Question 5

Detail the attachment and function of digastricus.

Answer 5

FROM: mastoid notch of temporal and digastric fossa of mandible
TO: inferior body of hyoid
FUNCTION: movement of jaw

Question 6

Detail the attachment and function of stylohyoid.

Answer 6

FROM: styloid process of temporal
TO: inferior body of hyoid
FUNCTION: elevation of tongue

Question 7

Detail the attachment and function of mylohyoid.

Answer 7

FROM: mylohyoid line of mandible
TO: medial inferior body of hyoid
FUNCTION: raises floor of mouth and tongue